502.3

IIS Internet Information Services
IIS Internet Information Services

An HTTP status code of 502 – Bad Gateway means “The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request.”  I interpret that to mean that there is a server (server A) between my client and the server (server B)…

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How to read, unable to read appsettings.json values ASP.NET Core

ASP.NET Core Benjamin Perkins
ASP.NET Core Benjamin Perkins

I wrote this article here “Database connection string when swapping between App Servers slots” and if you look at the last paragraph I mentioned a ‘gotcha’ when you have an application setting, “AppSetting” in your web.config file which has the same name as an application setting you have configured, via the portal of your Azure…

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ASP.NET Core 2.1 and HTTP Error 502.5 – Process Failure

ASP.NET Core Benjamin Perkins
ASP.NET Core Benjamin Perkins

I was deploying my ASP.NET Core 2.1 64-bit HelloWorld application and got this error, Figure 1. Figure 1, ASP.NET Core 2.1 502.5 x64 64 bit What I realized was that the 64 bit .NET Core runtime is not yet on the platform.  You can check that via KUDU/SCM and look for the D:\Program Files\dotnet directory…

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How to install ASP.NET Core 2.1 for development

ASP.NET Core Benjamin Perkins
ASP.NET Core Benjamin Perkins

A few days ago Microsoft announced the release of .NET Core 2.1, ASP.NET Core 2.1 and Entity Framework 2.1 here. I wrote a few similar articles about installing Core components, read them to get some greater perspective: Create a .NET Core 2 application on Linux with Visual Studio Code How to enable C# 7 in…

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Beginning C# 7 Programming with Visual Studio 2017, co-author Benjamin Perkins

Beginning C# 7 Programming Benjamin Perkins
Beginning C# 7 Programming Benjamin Perkins

Beginning C# 7 Programming with Visual Studio 2017, co-author Benjamin Perkins The Beginning C# 7 Programming with Visual Studio 2017 book is now available, check it out here.  I had again an opportunity to contribute some chapters to this book.  What an awesome experience!  There are lots of examples, experiences, discussions and reviews of the…

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.NET Core 2.0 modular and NuGet packages

.NET Core Benjamin Perkins
.NET Core Benjamin Perkins

One of the cool features of the .NET Core is that the namespaces you reference in the project are the only ones that are contained in the DLL your project renders.  I was reading that when you initially create a project in Visual Studio, that numerous packages are included by default and was wondering, because…

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Targeting a specific version of the .NET Framework

Microsoft .NET Benjamin Perkins
Microsoft .NET Benjamin Perkins

I find numerous opinions and understandings about side-by-side and in-place installations of the .NET Framework.  Here is my favorite explanation of this “.NET Versioning and Multi-Targeting – .NET 4.5 is an in-place upgrade to .NET 4.0”.  I also link to that same article in one of my IIS labs here, “Lab 5: Basic and Advanced…

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How to check the version of .NET Core on an Azure App Service

.NET Core Benjamin Perkins
.NET Core Benjamin Perkins

If you would like to check the version of .NET core installed on the Azure App Service platform you can execute the following command from KUDU/SCM, which i discuss further here.  Also show in Figure 1. Figure 1, how to check .NET Core version, which .NET Core version is running on Azure App Service You…

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How to capture an ASP.NET Core memory dump on Azure App Service

Azure App Service Benjamin Perkins
Azure App Service Benjamin Perkins

I have written numerous articles about ASP.NET and creating memory dumps, but noticed I had not written one specifically about capturing an ASP.NET Core memory dump on an Azure App Service.  Here are some of my ‘related’ articles of this matter. Create a memory dump for your slow performing Web App How to take a…

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Creating a NuGet package for my .NET Standard class library

.NET Core Benjamin Perkins
.NET Core Benjamin Perkins

I successfully created and published my first NuGet package that included a .NET Standard class library here.  It is nothing specificly awesome but it’s pretty cool, simple and something I have never done before.  I simply executed this msbuild command on my .NET Standard class library and it built the package for me. Before I…

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Target .NET Core 2.0 and .NET Standard 2.0

.NET Core Benjamin Perkins
.NET Core Benjamin Perkins

I originally downloaded and installed the 2.0.0-download.md version of the .NET Core SDK and Runtime from GitHub here. The mistake I made was to install the SDK Installer for the bit of my Visual Studio instead of my OS.  I am running a 32bit version of Visual Studio on 64bit version of windows. I was…

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How to install .NET Standard 2.0

Microsoft .NET Benjamin Perkins
Microsoft .NET Benjamin Perkins

The release of .NET Standard has been officially announced here.  I looked for a way to update .NET Standard to version 2.0 as I could see it was not installed on my workstation.  As shown in Figure 1, I only had version 1.0 – 1.6 installed. Figure 1, how to upgrade, install new version of…

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How to install .NET Core 2.0

.NET Core Benjamin Perkins
.NET Core Benjamin Perkins

The release of .NET Core has been officially announced here.  I looked for a way to update .NET Core to version 2.0 as I could see it was not installed on my workstation.  As shown in Figure 1, I only had version 1.0 and 1.1 installed. Figure 1, how to upgrade, install new version of…

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ASP.NET Core with Entity Framework Core SqlException: cannot openserver

ASP.NET Core Benjamin Perkins
ASP.NET Core Benjamin Perkins

I am doing some ASP.NET Core self study and experienced this issue.  The thing is that my client IP changes from time to time and need to add it to the the firewall so that database connections are allowed to it.  This happens mostly when I am debugging or coding from my workstation while the…

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404 when I deploy an ASP.NET Core Web API

ASP.NET Core Benjamin Perkins
ASP.NET Core Benjamin Perkins

When I deployed an ASP.NET Core Web API to my Azure App Service API App I received a 404 Not Found when the page was opened, as seen in Figure 1. Figure 1, 404 ASP.NET Core The reason for this is that the deployment or default ASP.NET Core Web API template does not include a…

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